package com.mixue.controller;

import com.mixue.restful.ResoutSet;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.UUID;

@RestController
@RequestMapping("/common")
public class UploadController {
//    private final String path="C:\\Users\\test\\Desktop\\mixuebingcheng\\src\\main\\resources\\back\\images\\naicha\\";
    @PostMapping("/upload")
    public ResoutSet<String> upload(MultipartFile file) throws IOException {
        String originalFilename = file.getOriginalFilename();
        String suffix = originalFilename.substring(originalFilename.indexOf("."));
        String fileName= UUID.randomUUID().toString()+suffix;
        File path=new File("E:\\mixue\\controller\\src\\main\\resources\\back\\images\\naicha");
        file.transferTo(new File("E:\\mixue\\controller\\src\\main\\resources\\back\\images\\naicha\\"+fileName));

        return ResoutSet.sussess(fileName);
    }
    @GetMapping("/download")
    public void dowmload(String name, HttpServletResponse response) throws IOException {
        FileInputStream fileInputStream=new FileInputStream(new File("E:\\mixue\\controller\\src\\main\\resources\\back\\images\\naicha\\"+name));
        ServletOutputStream outputStream = response.getOutputStream();
        response.setContentType("image/jpeg");
        int len=0;
        byte[] bytes=new byte[1024];
        while ((len=fileInputStream.read(bytes))!=-1){
            outputStream.write(bytes,0,len);
            outputStream.flush();
        }
        outputStream.close();
        fileInputStream.close();
    }
}
